Decomposition of nonafluoropentanoic acid by heteropolyacid photocatalyst H3PW12O40 in aqueous solution

Hisao Hori; Etsuko Hayakawa; Kazuhide Koike; Hisahiro Einaga; Takashi Ibusuki

doi:10.1016/j.molcata.2003.09.029

Decomposition of nonafluoropentanoic acid by heteropolyacid photocatalyst H₃PW₁₂O₄₀ in aqueous solution

Hisao Hori, Etsuko Hayakawa, Kazuhide Koike, Hisahiro Einaga, Takashi Ibusuki

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

Nonafluoropentanoic acid (C₄F₉COOH; NFPA), which is a typical perfluorinated acid, was decomposed to F^- and CO ₂ with a water-soluble tungstic heteropolyacid photocatalyst, H ₃PW₁₂O₄₀. The catalytic reaction proceeded in water at room temperature under UV-Vis irradiation in the presence of oxygen. The reaction system produced no trace of environmentally undesirable species, such as CF₄ and CF₃H. In addition to F^- ions, a small amount of a one-CF₂-unit-shortened species, heptafluorobutyric acid (C₃F₇COOH; HFBA), was formed. The reaction mechanism involves precomplexation between [PW₁₂O ₄₀]^3- and NFPA and subsequent redox reactions.

Original language	English
Pages (from-to)	35-41
Number of pages	7
Journal	Journal of Molecular Catalysis A: Chemical
Volume	211
Issue number	1-2
DOIs	https://doi.org/10.1016/j.molcata.2003.09.029
Publication status	Published - Mar 15 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
Process Chemistry and Technology
Physical and Theoretical Chemistry

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10.1016/j.molcata.2003.09.029

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@article{b3e75d6413354f48a15e62de21c77f66,

title = "Decomposition of nonafluoropentanoic acid by heteropolyacid photocatalyst H3PW12O40 in aqueous solution",

abstract = "Nonafluoropentanoic acid (C4F9COOH; NFPA), which is a typical perfluorinated acid, was decomposed to F- and CO 2 with a water-soluble tungstic heteropolyacid photocatalyst, H 3PW12O40. The catalytic reaction proceeded in water at room temperature under UV-Vis irradiation in the presence of oxygen. The reaction system produced no trace of environmentally undesirable species, such as CF4 and CF3H. In addition to F- ions, a small amount of a one-CF2-unit-shortened species, heptafluorobutyric acid (C3F7COOH; HFBA), was formed. The reaction mechanism involves precomplexation between [PW12O 40]3- and NFPA and subsequent redox reactions.",

author = "Hisao Hori and Etsuko Hayakawa and Kazuhide Koike and Hisahiro Einaga and Takashi Ibusuki",

note = "Funding Information: This work was supported in part by a grant-in-aid for Scientific Research (no. 15310066) from the Japan Society for the Promotion of Science (JSPS).",

year = "2004",

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doi = "10.1016/j.molcata.2003.09.029",

language = "English",

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journal = "Journal of Molecular Catalysis A: Chemical",

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T1 - Decomposition of nonafluoropentanoic acid by heteropolyacid photocatalyst H3PW12O40 in aqueous solution

AU - Hori, Hisao

AU - Hayakawa, Etsuko

AU - Koike, Kazuhide

AU - Einaga, Hisahiro

AU - Ibusuki, Takashi

N1 - Funding Information: This work was supported in part by a grant-in-aid for Scientific Research (no. 15310066) from the Japan Society for the Promotion of Science (JSPS).

PY - 2004/3/15

Y1 - 2004/3/15

N2 - Nonafluoropentanoic acid (C4F9COOH; NFPA), which is a typical perfluorinated acid, was decomposed to F- and CO 2 with a water-soluble tungstic heteropolyacid photocatalyst, H 3PW12O40. The catalytic reaction proceeded in water at room temperature under UV-Vis irradiation in the presence of oxygen. The reaction system produced no trace of environmentally undesirable species, such as CF4 and CF3H. In addition to F- ions, a small amount of a one-CF2-unit-shortened species, heptafluorobutyric acid (C3F7COOH; HFBA), was formed. The reaction mechanism involves precomplexation between [PW12O 40]3- and NFPA and subsequent redox reactions.

AB - Nonafluoropentanoic acid (C4F9COOH; NFPA), which is a typical perfluorinated acid, was decomposed to F- and CO 2 with a water-soluble tungstic heteropolyacid photocatalyst, H 3PW12O40. The catalytic reaction proceeded in water at room temperature under UV-Vis irradiation in the presence of oxygen. The reaction system produced no trace of environmentally undesirable species, such as CF4 and CF3H. In addition to F- ions, a small amount of a one-CF2-unit-shortened species, heptafluorobutyric acid (C3F7COOH; HFBA), was formed. The reaction mechanism involves precomplexation between [PW12O 40]3- and NFPA and subsequent redox reactions.

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Decomposition of nonafluoropentanoic acid by heteropolyacid photocatalyst H₃PW₁₂O₄₀ in aqueous solution

Abstract

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